艾滋病的感染途径有()
A.性接触感染
B.输带血HIV血液及其血液制品
C.日常接触如握手乘车等
D.共用污染的针头静脉注射
E.母婴垂直传播
参考答案:A, B, D, E
文具店有3种作业本,又进了a种,文具店共有( )种作业本。
The questionnaire takes ten to fifteen minutes to complete and can be used long with the assessment interview.
A.mainly
B.punctually
C.approximately
D.precisely